Manufacture of sterilized carbonated waters.



UNITED 4 STATES PATENTM'QFFICE.

THEODOR WEYL, OF O HARLOTTENB URG, NEAR BERLIN, GERMANY, AS- SIGNOR TOSIEMENS "& HALSKE, AKTIEN-GESELLSCHAFT, OF BERLIN,

GERMANY.

MANUFACTURE OF STERILIZED CARBONATED WATERS.

SPECIFICATION forming art of Letters Patent No. 700,464, dated May 20,1902.

Application filed February 7, 1900. Serial No. 4,395. .(No specimens.)

' f ul Improvements in the Manufacture of Sterili'zed Carbonated Waters;and I do hereby deolare the following to be a full, clear, and exactdescription of theinvention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to a process for manufacturing sterilizedcarbonated waters, lemon ades, and the like containing carbonic acid.

The invention consists in impregnating the waters with ozone, as well aswith carbonic acid, in such a way that in the finished product bothgases are present in quantities exceeding the amount which is normallyretained in the water by absorption.

I have found by experimentnot only that the simultaneous presence of thetwo mentioned gases has a stronger sterilizing effect than any one ofthem employed singly, but

also that by applying them in such a way that after completing theprocess the closed bottle contains an excess of both gases a finalsterili'zation takes place by which any organisms are killed which maybe and practically always are introduced into the vessels containing thewater in the act of filling the same.

My experiments have further shown me that it is not important which of;the two're agents, whether carbonic acid or ozone, is introduced intothe Water first. However, 'if' water containing no carbonic acid is usedIf prefer, merely as a matter of convenience in manufacture, tointroduce the ozone first and the carbonic acid afterward; but the 'sameeffect is obtained if the-order of treatment is reversed, and nodifficulty is met within'applying the herein-described process to watersnaturally containing carbonic acid.

The preferred means by which the excess of gas is introduced into thewater and retained therein consist in applying a sufficient/ pressureduring the treatment with ozone and likewise during the treatment withcarbonic acid and taking care to preserve the pressure during the wholeprocess, including the fillingofthe vessels intended for transport orsale of the finished product.

The process is performed as follows: The water containing carbonic-acidgas, which is obtained by impregnating water with carbonic acidsubjected to pressure in the usual waythat is,ordinary artificialmineral wateris subjected to a treatment by introducing ozone, carebeing taken to preserve the pressure. This can either be done byallowing the ozone to pass through the mineral water after the same hasbeen filled into the vessels intended for sale or in any other suitablevessel from usual way retain no traces of living organisms.

The product thus finished is transported and used in the ordinary way.

In the accompanying drawing I have illustrated in elevation, partlyinsection, an apparatus whereby my process may be carried into efiect. v p

In the drawing,- V represents an apparatus forintroducing air underpressure, such as a blower, while 0 represents an ozone-generatingapparatus which communicates with the blower V. From the ozone apparatus0 the pipe'R leads into the pressure tank or vessel G, whichvesselcontains the-water to be treated. The pipe S leads into the vesselG from the carbonic-acid apparatus K. The

pipes Rand s enter the. vessel G to a point below the water-level, asshown, and in the lid-D of the apparatus isarranged atube B, openinginthe vessel Gabove the water-level. The vessel G may be rotated on thehorizontal axis M N or the vertical axis P Q.

The water when completely aerated and treated according to my processmay be let off through the cock H. A manometer E is arranged on the lidD of the vessel G.

The operation of this apparatus is as follows "After the water has beensaturated with car= bonic acid by introducing the latter from theapparatus K through the tube S into the water air is forced through theozone apparatus O and then will arrive in the pipe R in an ozonizedcondition and enter into the vessel G, Where it will be absorbed by theliquid containing carbonic acid. The gas which is not absorbed in thetreatment of the liquid passes out through the pipe B. The saturatedWater is drained through the cock I-I. While heretofore it has beenimpossible to force water to absorb ozone, I have succeeded inaccomplishing the result by treating water saturated with carbonic acidunder pressure by ozone under pressure.

It will thus be seen that my invention, broadly considered, consists inintroducing ozone into water in the presence of carbonicacid gas undercircumstances under which more ozone is absorbed than corresponds to thecoefficient of absorption at ordinary temperatures. By this means afinal and complete sterilization is obtained after the vessel containingthe liquid has been closed.

Having now particularly described and ascertained the nature of my saidinvention and the manner in which the same is to be performed, I declarethat What I claim is- 1. The process of manufacturing sterilizedcarbonated liquids, which consists in first introducing, into the liquidto be treated, carbonic acid,and then introducing therein ozone undersustained pressure until a greater quantity of ozone is absorbed thancorresponds to the coefficient of absorption at ordinary pressure.

2. The process of manufacturing sterilized carbonated mineral Waters,which consists in introducing, into the Water to be treated, carbonicacid and ozone under sustained pressure until tested samples show theextinction of organic life, and then, While continually maintaining thepressure, transferring the water to storage vessels.

In testimony whereof I have affixed my signature in presence of twoWitnesses.

THEODOR WEYL.

Witnesses:

HENRY HASPER, WOLDEMAR IIAUPTa

